芳纶纤维表面改性及其对芳纶纸力学性能的影响  

Modification of aramid fiber and its effect on the mechanical properties of aramid paper

作　　者：张素风[1] 豆莞莞[1] 蒋莹莹[1] 万婧[1] 惠兰峰[2] 

机构地区：[1]陕西科技大学轻工与能源学院陕西省造纸技术及特种纸品开发重点实验室,陕西西安710021 [2]天津科技大学天津市制浆造纸重点实验室,天津300457

出　　处：《陕西科技大学学报（自然科学版）》2014年第5期1-4,9,共5页Journal of Shaanxi University of Science & Technology

基　　金：陕西省造纸技术及特种纸品开发重点实验室访问学者项目(12JS024);陕西科技大学学术带头人团队项目(2013XSD24)

摘　　要：利用氯磺酸、醋酸酐对芳纶短切纤维进行了改性处理,再用处理后的纤维配抄芳纶纸,探讨了处理工艺对芳纶纸力学性能的影响.结果表明,当氯磺酸浓度为2%,处理时间为10min,处理温度为50℃时,芳纶纸的力学性能较好.用100%的醋酸酐对芳纶纤维进行处理然后配抄成纸,所得纸张的抗张指数和撕裂指数分别提高了63.8%和21.4%.另外,芳纶纤维经过醋酸酐浸泡1min后再用甲醇处理3min,芳纶纸的抗张指数和撕裂指数分别提高了84.7%和38.4%.The aramid short fiber was firstly modified with chlorine acid or acetic anhydride under different conditions respectively,then mixed with fibrids to manufacture aramid paper and finally effect of different treatment process on the mechanical properties of aramid paper was discussed.Results show that aramid paper have better mechanical properties at the chlorine acid concentration of 2%,processing time of 10 min and processing temperature of 50℃.The tensile index and tear index aramid paper had increased 63.8%and 21.4%respectively when the fiber was modified by acetic anhydride at the concentration of 100%.In addition,tensile index and tear index of aramid paper had increased by 84.7%and 38.4% when the aramid fiber was soaked 1min in acetic anhydride and treated 3min in methanol.

关 键 词：芳纶短切纤维 表面改性 芳纶纸 力学性能 

分 类 号：TS761.2[轻工技术与工程—制浆造纸工程]